I came across a quantity of these motors new in shrink wrap (NIB). They are capable of 7-10 lbs per motor and are more than 92% efficient. These are there largest motors in the sUAS series (s=small).
https://www.kdedirect.com/collections/uas-multi-rotor-brushless-motors/products/kde4215xf-465
Because I was fortunate enough to get a quantity of these at a great deal - I have these at 50% of internet pricing.
I could part with 6 motors for $400 or 8 for $500.
Verified PP only. Price includes shipping.
https://www.kdedirect.com/collections/uas-multi-rotor-brushless-motors/products/kde4215xf-465
Because I was fortunate enough to get a quantity of these at a great deal - I have these at 50% of internet pricing.
I could part with 6 motors for $400 or 8 for $500.
Verified PP only. Price includes shipping.